204673541 has 2 divisors, whose sum is σ = 204673542. Its totient is φ = 204673540.

The previous prime is 204673477. The next prime is 204673577. The reversal of 204673541 is 145376402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198528100 + 6145441 = 14090^2 + 2479^2 .

It is a cyclic number.

It is not a de Polignac number, because 204673541 - 2⁶ = 204673477 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204673498 and 204673507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204603541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102336770 + 102336771.

It is an arithmetic number, because the mean of its divisors is an integer number (102336771).

Almost surely, 2^204673541 is an apocalyptic number.

It is an amenable number.

204673541 is a deficient number, since it is larger than the sum of its proper divisors (1).

204673541 is an equidigital number, since it uses as much as digits as its factorization.

204673541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 204673541 is about 14306.4160781098. The cubic root of 204673541 is about 589.3236921622.

The spelling of 204673541 in words is "two hundred four million, six hundred seventy-three thousand, five hundred forty-one".